[nobody314]

The FAA is in charge of what goes on the plane FAA Office of Security & Hazardous Materials Safety http://ash.faa.gov

You have to love calling the office of Hazardous Materials Safety "ASH" !

[barrkel]

That's things like flammables, combustibles, weapons and more insidiously dangerous things like mercury (eats away at aluminium, which is common in airplane bodywork).